Skew angle effect in shingled writing magnetic recording

Kenji Miura, Eiji Yamamoto, Hajime Aoi, Hiroaki Muraoka

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)

Abstract

In the shingled writing scheme the magnetization distribution at the track edge should be controlled to achieve high track densities. In particular, reducing the erase band width is necessary because of its large noise. The erase band width is determined in the writing process by both the head field gradient and SFD. In shingled writing, we can designate either side of the written track as the remaining side due to the progressive scan. In this work, erase band width reduction was accomplished by optimization of the skew. A track pitch decrease of 7% was measured due to skew angle control alone. Additionally, the track pitch improvement due to narrower erase bands was increased from 11 to 21% by narrowing the magnetic read width from 80 to 20 nm.

Original languageEnglish
Pages (from-to)2-7
Number of pages6
JournalPhysics Procedia
Volume16
DOIs
Publication statusPublished - 2011
Event9th Perpendicular Magnetic Recording Conference, PMRC 2010 - Sendai, Japan
Duration: 2011 May 172011 May 19

Keywords

  • 747 curves
  • Erase band width
  • Shingled writing

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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